Mangle.



W. LEIST.

MANGLE. APPLICATION FILED JAN.14,1909.

Patented Nov. 8

sulom'mu, 0.7a.

WILLIAM LEIST, OF NORWOOD, OHIO, ASSIGNOR T0 GUSTAVE HENRY JANTZ, OIEWYOMING, OHIO.

MANGLE.

To all whom ll; may concern:

Be it known that I, WILLIAM LEIST, a citizen of the United States ofAmerica, and a resident of Norwood, in the county of I-Iamilton andState of Ohio, have invented a certain new and useful Improvement inMangles, of which the following is a specification.

This invention relates to improvements in mangles, especially to thoseadapted for use in laundries in connection with what is commonly knownas flat work, such mangles having one of the pair of their parallelrolls duly heated for the proper smoothing of the work passed bet-weenthem. i

The object of the invention is to enable the mangle rolls to be readilyseparated or parted and so held when not in the act of working on theclothes and to free the unheated padded or cloth faced roll fromtouching or heating contact with the metal face of the smoothing orironing hot roll.

In the accompanying single sheet of drawings, representing my inventionherein, Figure 1 is a front elevation of a mangle embodying my inventionherein, the pair of rolls being shown in normal position as they appearwhen in use for work; Fig. 2, an elevation of the device, taken at theleft side of Fig. 1; Fig. 3, a sectional elevation taken on the verticalclotted-line a, a, of Fig. 1, but showing the rolls parted by thewedging action of the disks; Fig. 4, an axial, sectional elevation,taken longitudinally through the center of the device shown in Fig. 1,but with the driving-handle broken off; Fig. 5, a fragmentary,perspective view showing the upper unheated roll, the shaft, thewedgingdisk separated from said roll on the shaft and the verticalguides, but with the presse spring removed from the latter; and Fig. 6,a detail plan view of the upper end of one of the guide-ways with theadjusting-screw and top-plate omitted.

In these views, 1 indicates the lower, heated roll and 2 the upper,unheated roll of the device. These rolls are arranged between uprightsupporting guide-ways 3, 4c the roll 2 being rigidly mounted on acentral shaft 6 and roll 1 having trunnions 1 and 1 and the body of roll1 extending beyond the body of roll 2 at either end.

7, 8, indicate disk-members loosely mounted on the shaft 6 of theunheated roll, at either end of the latter, intermediate its op-Speeification of Letters Patent.

Application filed January 14, 1909.

Patent-ed Nov. 8, 1910.

Serial No. 472,163.

posite ends and the adjacent. guide-ways 3, 4:. Each of thesedisk-members comprises a body portion or disk 7 which is somewhat morethan a half circle, and an irregular tangentially extended cam-memberproper or shoe 7 the latter having an inclined wedging surface 7, anoutwardlyfacing concavity or depression 7 an inner concavity 7 and,also, a lateral extension 7 all as best seen in Fig. 5. The peripheralface of the body portion 7 is normally spaced a suflicient distance awayfrom the peripheral face of roll 1 so that the W'edging-disks do notcontact with the latter nor turn therewith when the device is in forwarduse on the work, the lateral extensions 7 preventing the wedging-disksturning forward on the axis 6 during such regular forward operation ofthe device and sustaining the lower wedgeedge 7 slightly away fromtouching contact with the opposite projecting ends of the body of theroll 1, in position, however, ready for the backward turn of the latterwhen it is desired to part or separate the unheated roll 2perpendicularly upward from the heated metallic face of roll 1. Whenroll 1 has been turned backward, it first engages the inclined surfaces7 of the disk members 7 and 8, the latter gravitating downward caused bythe overweight of the shoe portions 7 on the periphery of the bodyportions 7 and practically feeding the points of wedges 7 against theperiphery of the adjacent extended ends of the body of the roll 1. Bothdisks revolve freely on their common axis 6 until the depressions 7 ofboth disks rest in arc-contact with the peripheral face of heatedroll 1. The depressed surfaces 7 form seats to sustain the upper roll 2in its raised position away from the heated surface of said roll 1 in apositive manner that is not likely to be displaced until thedrive-handle is turned forward again for the working operation. hen theupper roll 2 is inraised position and the depressions 7 peripherallyseated on the extended ends of the body of the roll 1, the lateralprojections 7 bear against the upright guides 3, 4, thus preventing thedisks rotating farther on the axis 6, as best seen in Fig. 3, whereinthe cylindrical bodies of the two rolls 1 and 2 are shown spaced apart.The lateral extensions 7 prevent the disks rotating farther forward onthe axis 6 and hold the cams in check ready for the backward movement ofthe heated roll 1 when it is desired to throw the rolls apart and at thetime when the work is not being passed between them.

9 indicates a spiral-spring interposed between each of the sliding boxesof the upper roll shaft 6 and the vertical sliding presserplates 10 inthe guide-ways 3 and 4.

11 indicates each one of the two adj ustingscrews used in regulating thetension of the springs 9 for exerting the desired pressure 011 the upperroll 2 to suit the variable kinds of work passed through the device.

12 indicates each one of two cap or top plates bolted in place over theguide-ways 3 and 4: and provided with a central screwthreaded openingfor the engagement of the adjusting-screws 11.

12 indicates a cross-bar integrally connecting the two cap or top plates12, as best seen in Figs. 1 and 4:.

The heated roll 1 is preferably a hollow one, such as best shown in Fig.4, and made up of a tube or cylinder 1 and end-heads 1 1 one end-headhaving a central, solid journal or trunnion 1 that journals in asuitable box in the lower part of theguideway 3 and the other end-head 1having a hollow, central journal or trunnion 1 that journals in asuitable box in the lower part of the guide-way 4. A. suitable jet-pipe13, having a number of perforations along its inner portion, extendsaxially through the hollow journal 1 of the end-head 1 into the hollowroll 1 and extends outwardly for connection with a steam or other hotmedium supply-pipe 14: that is duly supported independent of the mangledevice so that the hollow roll 1 may duly revolve independent of saidjet-pipe 13. A suitable annular space 15 is provided around the jet-pipe13 in the journal extension l of the hollow .roll 1 so that the lattermay ride or revolve entirely free from the jet-pipe 13 and, also, fordue escapeof the steam or other heating medium from the interior of theheated roll 1, the conduct of such escape being duly provided for in anysuitable manner (not herein shown).

A surface or pad of cloth or other suitable material 16 ispreferablyprovided on the face of the unheated roll 2, as customary in theconstruction of mangles.

The upper roll 2 is preferably a solid one composed of wood or othersuitable material and provided with end disks or heads 2* and rigidlymounted on the shaft 6 so as to rotate therewith. This roll 2 may becloth covered or not, as desired, to suit the work passed through themangle. A cog-wheel 17 is rigidly mounted on the left outward ea tensionof the shaft 6 and mesheswith a similar cog-wheel 18 rigidly mounted onthe outward extension 1 of the heated roll 1, and a drive-handle 19 isproperly secured to the extreme end of the outward extension 1 wherebyboth rolls are positively actuated in unison. It will be seen, in Fig.2, that the cogs of the wheels 17 and 18 are of such radiallength as tomake provision or due allowance for the upward spacing of the roll 2away from the roll 1 and still maintain a positive co-engagement betweenthem for both the forward and backward turns of the two rolls.

It will be seen that when the upper roll is parted from the lower heatedroll, the cloth-padded or otherwise prepared surface of the former rollis not burned or scorched, or otherwise injured by the heat radiatedfrom the lower roll, and such cloth-covered surface of the unheated rollis relieved of the pressure of the springs (which are now compressedupward,) that might otherwise bring its periphery in contact with thesurface of roll 1 to uneven it.

I claim 1. In a mangle, the combination of an upper unheated roll, alower, parallel heated roll of greater length than the latter andextended at its opposite ends beyond said unheated roll, a shaftextending at its opposite ends from said unheated roll,centrallyorificed and loosely-mounted disks on said extended ends ofsaid shaft and having progressively-inclined and recessed formationsthereon that are adapted for frictionalcontact with the adjacentperipheral face of the extended ends of said lower heated roll, suitablesupporting means and suit-able rollrotating means.

2. In a mangle, the combination of an upper unheated roll, a lower,parallel heated roll of greater length than the latter and extendedbeyond the said unheated roll, journals for the heated roll,shaft-extensions at the opposite ends of said unheated roll,centrally-orificed and loosely-mounted disks on the saidshaft-extensions of the upper unheated roll and having a progressivelyinclined, recessed and detent formation thereon, journal-supportingmeans for both rolls, spring-pressure means for the upper unheated rolland driving-means for both rolls.

WILLIAM LEIST.

Witnesses JOHN ELIAS J ONES, NORMA Knisnn.

